SECURE METHOD FOR DIGITAL DATA TRANSMISSION

摘要

The invention concerns a secure method for digital data transmission which consists in transforming the digital data to be transmitted into a sequence of initial integers each of which is less than p where p and d are two specific integers, and, for each of the initial integers, including the following steps which consists in: determining initial coefficients of an initial polynomial of degree less than d corresponding to the expression of the initial integer in base p; determining new coefficients of a new polynomial of degree less than d, image of the initial polynomial by an encryption bijection, said encryption bijection corresponding to the combination of intermediate bijective applications, at least one of said intermediate bijective applications being defined based on a Drinfeld module associated with an encryption key; defining a new integer based on the new coefficients; and transmitting the new integer.